package com.hafu.dao;

import com.hafu.model.SpInfo;
import com.hafu.util.DbUtil;

import java.math.BigDecimal;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

public class SpInfoDao {
    //添加商品信息
    public Boolean addSpInfo(com.hafu.model.SpInfo sp) {
        String sql = "insert into spinfo(name, price, sell_price) values(?, ?, ?)";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setString(1,sp.getName());
            preparedStatement.setBigDecimal(2,sp.getPrice());
            preparedStatement.setBigDecimal(3,sp.getSell_Price());
            int i = preparedStatement.executeUpdate();
            if (i>0){
                System.out.println("添加成功");
                return true;
            }else return false;
        } catch (SQLException throwables) {
            throwables.printStackTrace();
        }
        return false;
    }
    //删除商品信息
    public Boolean deleteSpInfo(int id) {
        String sql="delete from spinfo where id=?";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setInt(1,id);
            int i = preparedStatement.executeUpdate();
            if (i>0){
                System.out.println("删除成功");
                return true;
            }else return false;
        }catch (SQLException throwablese){
            throwablese.printStackTrace();
        }
        return false;
    }
    //修改商品信息
    public Boolean updateSpInfo(SpInfo sp) {
        String sql="update spinfo set name=?,price=?,sell_price=? where id=?";
        Connection conn = DbUtil.getConn();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            preparedStatement.setString(1,sp.getName());
            preparedStatement.setBigDecimal(2,sp.getPrice());
            preparedStatement.setBigDecimal(3,sp.getSell_Price());
            preparedStatement.setInt(4,sp.getId());
            int i = preparedStatement.executeUpdate();
            if (i>0){
                System.out.println("修改成功");
                return true;
            }else return false;
        }catch (SQLException throwables){
            throwables.printStackTrace();
        }
        return false;
    }
    //根据商品id查询商品信息
    public ArrayList<SpInfo>getSpInfoByName(SpInfo sp) {
        String sql="select * from spinfo";
        if (!com.hafu.util.StringUtl.isEmpty(sp.getName())){
            //模糊查询
            sql=sql+" where name like '%"+sp.getName()+"%'";
        }
        Connection conn = DbUtil.getConn();
        ArrayList<SpInfo> splist = new ArrayList<>();
        try {
            PreparedStatement preparedStatement = conn.prepareStatement(sql);
            ResultSet resultSet = preparedStatement.executeQuery();
            while (resultSet.next()){
                int id = resultSet.getInt("id");
                String name = resultSet.getString("name");
                BigDecimal price = resultSet.getBigDecimal("price");
                BigDecimal sell_price = resultSet.getBigDecimal("sell_price");
                com.hafu.model.SpInfo spInfo = new com.hafu.model.SpInfo(id, name, price, sell_price);
                splist.add(spInfo);
            }

        }catch (SQLException throwables){
            throwables.printStackTrace();
        }
        return splist;
    }
}
